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This paper studies the dynamic binary neural network (DBNN) that can generate a variety of binary periodic orbits. The DBNN is constructed by applying the delayed feedback to a three-layer network. It is characterized by the signum activation function and ternary/binary weighting parameters. First, we give a systematic analysis tool: the Gray-code-based return map that is useful to grasp basic characteristics...
This paper introduces the design, development and flight result of a small reusable rocket that glides using parafoil. The mission is autonomous guidance using parafoil, because the rocket must be recovered safely at target point. In order to avoid tangling of parafoil strings, roll control using aileron is employed to keep the ejection door upward. The rocket was launched at an annual rocket launch...
This paper presents a novel approach for user positioning, robust tracking and online 3D mapping for outdoor augmented reality applications. As coarse user pose obtained from GPS and orientation sensors is not sufficient for augmented reality applications, sub-meter accurate user pose is then estimated by a one-step silhouette matching approach. Silhouette matching of the rendered 3D model and camera...
In this paper we present a novel model-based hybrid technique for user localization and drift-free tracking in urban environments. In outdoor augmented reality, instantaneous 6-DoF user localization is achieved with position and orientation sensors such as GPS and gyroscopes. Initial pose obtained with these sensors is dominated by large positional errors due to coarse granularity of GPS data. Subsequent...
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